/* ------------------------------------------------------------------ */
/* Time machine (DESIGN.md §12.5)                                     */
/* ------------------------------------------------------------------ */

.ribbon.tm {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  height: auto;
  padding: 6px 6px 4px;
  border-radius: 20px;
  background: rgba(7, 9, 12, 0.78);
  -webkit-backdrop-filter: blur(24px) saturate(1.5);
  backdrop-filter: blur(24px) saturate(1.5);
  box-shadow:
    inset 0 0.5px 0 rgba(255, 255, 255, 0.2),
    inset 0 0 0 0.5px var(--hairline-strong),
    0 12px 40px rgba(0, 0, 0, 0.45);
}

.tm-row {
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 40px;
}

.tm-play {
  flex: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #050607;
  background: #f4f7fb;
  font-size: 1.05rem;
  transition:
    transform var(--dur-1) var(--ease-out),
    background var(--dur-2) linear;
}

.tm-play:hover {
  background: #fff;
}

.tm-play:active {
  transform: scale(0.92);
}

.ribbon.tm.is-playing .tm-play {
  background: var(--b-sky);
}

.tm-read {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  padding-left: 4px;
}

.tm-delta {
  font-family: var(--mono);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
  color: var(--ink);
}

.ribbon.tm.is-live .tm-delta {
  color: #ff6b61;
}

.ribbon.tm[data-future='true'] .tm-delta {
  color: var(--b-orbit);
}

.tm-abs {
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--ink-3);
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.tm-speeds {
  flex: none;
  display: flex;
  padding: 2px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
}

.tm-speeds button {
  min-width: 34px;
  height: 30px;
  padding: 0 4px;
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--ink-3);
  transition:
    background var(--dur-1) linear,
    color var(--dur-1) linear;
}

.tm-speeds button:hover {
  color: var(--ink);
}

.tm-speeds button[aria-checked='true'] {
  color: #050607;
  background: var(--ink);
}

.tm-clip.icon-btn {
  flex: none;
  width: 34px;
  height: 34px;
  font-size: 1.05rem;
  color: var(--ink-2);
  background: rgba(255, 255, 255, 0.06);
}

.tm-clip[aria-pressed='true'] {
  color: #2a1a00;
  background: var(--b-inside);
}

.ribbon.tm .tm-now {
  height: 34px;
  padding: 0 10px;
  border-radius: 10px;
}

.tm-track.rb-track {
  flex: none;
  height: 52px;
  margin: 2px 0 0;
  border-radius: 12px;
  cursor: grab;
}

.ribbon.tm.scrubbing .tm-track {
  cursor: grabbing;
}

.ribbon.tm.is-clipping .tm-track {
  cursor: crosshair;
}

.tm-head.rb-head {
  top: 4px;
  bottom: 4px;
  width: 2px;
  margin-left: -1px;
  background: #fff;
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.55);
}

.tm-head i {
  position: absolute;
  top: -2px;
  left: 50%;
  width: 9px;
  height: 6px;
  margin-left: -4.5px;
  background: inherit;
  clip-path: polygon(0 0, 100% 0, 50% 100%);
}

.ribbon.tm.is-live .tm-head {
  background: #ff453a;
  box-shadow: 0 0 12px rgba(255, 69, 58, 0.7);
}

.ribbon.tm.is-playing .tm-head {
  background: var(--b-sky);
  box-shadow: 0 0 14px rgba(163, 216, 255, 0.8);
  animation: none;
}

/* Floats above the whole time machine, so it never covers the readout. */
.tm-callout {
  position: absolute;
  z-index: 2;
  left: 50%;
  bottom: calc(100% + 8px);
  transform: translateX(-50%);
  max-width: 82%;
  padding: 5px 9px;
  border-radius: 8px;
  background: rgba(8, 10, 14, 0.92);
  box-shadow: inset 0 0 0 0.5px var(--hairline-strong);
  color: var(--ink);
  font-size: 0.6875rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  border-left: 3px solid var(--c, #fff);
  pointer-events: none;
  animation: tm-pop 260ms var(--spring) both;
}

@keyframes tm-pop {
  from {
    opacity: 0;
    transform: translate(-50%, 6px) scale(0.96);
  }
}

.tm-cliprow {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 2px 2px;
}

.tm-cliprow[hidden] {
  display: none;
}

.tm-cliplen {
  flex: 1;
  min-width: 0;
  color: var(--ink-2);
  font-size: 0.6875rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tm-cliplen b {
  color: var(--b-inside);
}

.tm-cliprow .pill-btn {
  height: 34px;
  padding: 0 12px;
  font-size: var(--t-foot);
}

.tm-clipgo.pill-btn.primary {
  background: var(--b-inside);
  color: #2a1a00;
}

.tm-clipgo:disabled {
  opacity: 0.4;
}

.ribbon.tm.custom .tm-speeds,
.ribbon.tm.custom .tm-clip,
.ribbon.tm.custom .tm-play {
  display: none;
}

@media (max-width: 380px) {
  .tm-speeds button {
    min-width: 28px;
  }
  .tm-delta {
    font-size: 0.9375rem;
  }
}

@media (hover: hover) {
  .tm-track:hover {
    background: rgba(255, 255, 255, 0.02);
  }
}

/* The tab-bar accessory takes a row above the tab bar: chrome sits above it. */
:root.has-accessory {
  --chrome-bottom: calc(var(--tabbar-h) + var(--tabbar-gap) + 66px);
}

.tm-cliplen {
  white-space: normal;
  line-height: 1.35;
}

/* NOW snap: a ring pulses out of the playhead and the NOW pill. */
.ribbon.tm.snap .tm-head::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 10px;
  margin: -5px 0 0 -5px;
  border-radius: 50%;
  box-shadow: 0 0 0 2px rgba(255, 69, 58, 0.9);
  animation: tm-snap 760ms var(--ease-out) both;
  pointer-events: none;
}

.ribbon.tm.snap .tm-now {
  animation: tm-now-pop 520ms var(--spring) both;
}

@keyframes tm-snap {
  from {
    opacity: 1;
    transform: scale(0.6);
  }
  to {
    opacity: 0;
    transform: scale(6);
  }
}

@keyframes tm-now-pop {
  40% {
    transform: scale(1.12);
    box-shadow: 0 0 0 4px rgba(255, 69, 58, 0.28);
  }
}

@media (prefers-reduced-motion: reduce) {
  .ribbon.tm.snap .tm-head::after,
  .ribbon.tm.snap .tm-now {
    animation: none;
  }
}